The SMBN0645 BLOCK neodymium magnet is made from high perfermance N52 NdFeB, with Nickel coating. The dimension of this item is 4" × 4" × 2" thick, magnetized Through Thickness, with tolerance of ±0.004" × ±0.004" × ±0.004". The weight of this super strong neodymium magnet is 8.675 lbs. It can pull up to 1226.5 lbs steel. And the surface field is up to 4933 gauss.

SMBN0645 Neodymium BLOCK Magnet Safety Tips

The smbn0645 neodymium block magnet has a very strong attractive force. Unsafe handling could cause jamming of fingers or skin in between magnets. This may lead to contusions and bruises.